Card Codex

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17 May 2024: Card library updated.

Hall of Gemstone

1GG · World Enchantment

At the beginning of each player's upkeep, that player chooses a color. Until end of turn, lands tapped for mana produce mana of the chosen color instead of any other color.

Similar cards

Color identity:
NameManaTypeText
Flowstone Wall 2RCreature — Wall Defender (This creature can't attack.) {R}: Flowstone Wall gets +1/-1 until end of turn. 0/6
Incisor Glider 1WArtifact Creature — Phyrexian Construct Flying Corrupted — Whenever Incisor Glider attacks, if an opponent has three or more poison counters, creatures you control get +1/+1 until end of turn. 1/3
Weatherseed Elf GCreature — Elf {T}: Target creature gains forestwalk until end of turn. (It can't be blocked as long as defending player controls a Forest.) 1/1
Sword Coast Sailor 1ULegendary Enchantment — Background Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, this creature can't be blocked this turn."
Biowaste Blob 2GGCreature — Ooze Oozes you control get +1/+1. At the beginning of your upkeep, if you control a commander, create a token that's a copy of Biowaste Blob. 0/0
Llanowar Greenwidow 2GCreature — Spider Reach, trample Domain — {7}{G}: Return Llanowar Greenwidow from your graveyard to the battlefield tapped. It gains "If this permanent would leave the battlefield, exile it instead of putting it anywhere else." This ability costs {1} less to activate for each basic land type among lands you control. 4/3
Howltooth Hollow Land Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) Howltooth Hollow enters the battlefield tapped. {T}: Add {B}. {B}, {T}: You may play the exiled card without paying its mana cost if each player has no cards in hand.
Desperate Research 1BSorcery Choose a card name other than a basic land card name. Reveal the top seven cards of your library and put all of them with that name into your hand. Exile the rest.
Mana Drain UUInstant Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
Unbreakable Formation 2WInstant Creatures you control gain indestructible until end of turn. Addendum — If you cast this spell during your main phase, put a +1/+1 counter on each of those creatures and they gain vigilance until end of turn.
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